Vienna, IL
Climate overview — based on NOAA 1991-2020 normals from DIXON SPRINGS AGRIC CTR, IL US.
Year-round temperatures (°F)
Climate summary
Vienna has an annual average temperature of 57.2°F with about 50.5 inches of precipitation per year and 7.2 inches of snow. The warmest month is July (average high 88.3°F), and the coldest is January (average low 25.5°F). May is typically the wettest month (5.19 in) and February the driest (3.64 in). Snow typically falls from October through March.
Best time to visit Vienna
Full guide →Climate change signal
All-time records →39 of 366 (10.7%) of Vienna's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1960s | 3 | |
| 1970s | 30 | |
| 1980s | 89 | |
| 1990s | 72 | |
| 2000s | 81 | |
| 2010s | 72 | |
| 2020s | 19 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 43.3°F | 25.5°F | 34.4°F | 3.84 in | 1.7 in | 8 |
| February | 48.7°F | 29.0°F | 38.8°F | 3.64 in | 3.2 in | 8 |
| March | 58.6°F | 36.9°F | 47.7°F | 4.66 in | 0.6 in | 9 |
| April | 69.7°F | 46.2°F | 57.9°F | 4.96 in | — | 10 |
| May | 77.2°F | 55.6°F | 66.4°F | 5.19 in | — | 10 |
| June | 85.2°F | 62.9°F | 74.0°F | 4.08 in | — | 8 |
| July | 88.3°F | 66.5°F | 77.4°F | 4.39 in | — | 8 |
| August | 87.4°F | 64.8°F | 76.1°F | 3.65 in | — | 6 |
| September | 82.0°F | 57.5°F | 69.7°F | 3.79 in | — | 6 |
| October | 71.2°F | 46.3°F | 58.7°F | 3.84 in | 0.3 in | 7 |
| November | 57.0°F | 37.2°F | 47.1°F | 4.30 in | — | 8 |
| December | 46.3°F | 29.2°F | 37.8°F | 4.16 in | 1.4 in | 9 |
Climate twins of Vienna
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).